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  <h2>Forcing Chain</h2>
  <p>
   If we assume that {0}, it follows, through a Forcing Chain, that {1}.
   Therefore we can conclude that <r>{2}</r>.
  </p><p>
   The Forcing Chain consists of a chain of implications based on simple rules.
   The details of the Forcing Chain are given below.
  </p><p>
   <b>Details of the Forcing Chain:</b><br>
   {3}
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